Micro bubble generation method and generation device

Abstract

A micro bubble generation method and generation device. The micro bubble generation method includes: passing a gas through a microporous material, the gas forming micro bubbles at an interface between the microporous material and liquid, the bubbles being adsorbed on the surface of the microporous material; impacting the micro bubbles adsorbed on the microporous material by relative motion of the microporous material and the liquid, such that the micro bubbles detach from the microporous material and enter into the liquid. The micro bubble generation device includes a gas accommodating chamber (1) disposed below the liquid surface, and a gas transmission pipeline (3). A microporous material layer (2) is arranged around the periphery of the gas accommodating chamber (1). The gas in the gas accommodating chamber (1) passes through the microporous material layer (2) by gas pressure to form micro bubbles on the outer surface thereof. The microporous material layer (2) moves and/or the liquid outside the microporous material layer (2) moves to cut the micro bubbles.

1 . A micro bubble generation method, comprising:
 passing a gas through a microporous material, the gas forming micro bubbles at an interface between the microporous material and liquid; and   impacting the micro bubbles adsorbed on the microporous material by relative motion of the microporous material and the liquid, such that the micro bubbles detach from the microporous material and enter into the liquid.   
     
     
         2 . The micro bubble generation method according to  claim 1 , wherein a shear force of the liquid on the micro bubbles is greater than an adsorption force or a surface tension of capillary effect of the microporous material on the micro bubbles. 
     
     
         3 . The micro bubble generation method according to  claim 1 , wherein the liquid is in a static state and the microporous material is in a moving state and drives the gas entering the microporous material to move synchronously with it, so as to impact the micro bubbles formed on the interface between the microporous material and the liquid. 
     
     
         4 . The micro bubble generation method according to  claim 1 , wherein the microporous material is in a static state and the liquid is in a moving state, so as to impact the micro bubbles formed on the interface between the microporous material and the liquid. 
     
     
         5 . The micro bubble generation method according to  claim 1 , wherein the microporous material is a cathode or an anode that generates micro bubbles on the surface of the material during electrolysis. 
     
     
         6 . A micro bubble generation device, comprising a gas accommodating chamber disposed below a liquid surface and a gas transmission pipeline for delivering gas into the gas accommodating chamber, wherein:
 a microporous material layer that allows the gas in the gas accommodating chamber to pass through is provided around a periphery of the gas accommodating chamber;   one end of the gas transmission pipeline is located above the liquid surface and is connected to a gas source, and the other end of the gas transmission pipeline extends into the gas accommodating chamber, so that the gas in the gas accommodating chamber passes through the microporous material layer by gas pressure and forms micro bubbles on an outer surface of the microporous material layer; and   the microporous material layer and/or the liquid outside the microporous material layer cut the micro bubbles by movement, such that the micro bubbles enter into the liquid.   
     
     
         7 . The micro bubble generation device according to  claim 6 , wherein:
 the gas transmission pipeline is provided with a gas pump, a primary filter and a secondary filter in sequence in a flow direction of the gas; and   a pore diameter of a filter element of the secondary filter is smaller than a pore diameter of a filter element of the primary filter and a pore diameter of the microporous material layer.   
     
     
         8 . The micro bubble generation device according to  claim 6 , wherein the gas transmission pipeline is provided with a flow meter and a pressure gauge, and the flow meter is provided with an adjusting knob capable of controlling a flow rate of the gas. 
     
     
         9 . The micro bubble generation device according to  claim 8 , wherein the device further comprises an outer rotor motor for driving the gas accommodating chamber to rotate in a circumferential direction, the outer rotor motor is disposed in the gas accommodating chamber, and an outer rotor of the outer rotor motor is sealingly and fixedly connected with an inner wall of a lower portion of the microporous material layer. 
     
     
         10 . The micro bubble generation device according to  claim 9 , the device further comprising a first fixed base, wherein:
 the microporous material layer is a cylindrical structure which is vertically arranged and has a closed top and an open bottom;   a sealing cap made of a microporous material and integrally formed with the microporous material layer is provided on the top of the microporous material layer, and the sealing cap is a hollow hemispherical structure protruding upward; and   the bottom of the outer rotor motor is sealingly and fixedly connected to the top of the first fixed base.   
     
     
         11 . The micro bubble generation device according to  claim 10 , wherein:
 the gas transmission pipeline comprises a first main gas transmission pipe, one end of which is located above the liquid surface, and the other end of which extends into the gas accommodating chamber through the first fixed base and the outer rotor motor in sequence and is internally sealed with a first plugging block;   the first main gas transmission pipe passes through a central hole of the outer rotor motor and is sealingly and fixedly connected with the outer rotor motor;   a plurality of first branch gas transmission pipes are connected to the first main gas transmission pipe located in the gas accommodating chamber, and are uniformly distributed in a circumferential direction of the first main gas transmission pipe; and   the first branch gas transmission pipe comprises a horizontal pipe section and a vertical pipe section, one end of the horizontal pipe section is connected to the first main gas transmission pipe, the other end of the horizontal pipe section extends in a horizontal direction to a position close to the microporous material layer and is connected to a top end of the vertical pipe section, and the bottom end of the vertical pipe section extends vertically downward.   
     
     
         12 . The micro bubble generation device according to  claim 6 , wherein:
 the gas accommodating chamber is a cylindrical structure formed by enclosing of the microporous material layer and sealed at both ends, an axial direction of the gas accommodating chamber is arranged in a horizontal direction, and a second hollow shaft is arranged at an internal center axis of the gas accommodating chamber and arranged in the axial direction thereof; and   the second hollow shaft is provided with a plurality of gas inlet holes being in communication with the gas accommodating chamber, and the second hollow shaft protrudes to the outside of the gas accommodating chamber and is connected to a first driving motor and the gas transmission pipeline, respectively.   
     
     
         13 . The micro bubble generation device according to  claim 12 , wherein an annular first baffle is provided on an outer wall of each end of the gas accommodating chamber and extends in a circumferential direction of the gas containing chamber. 
     
     
         14 . The micro bubble generation device according to  claim 13 , wherein:
 an annular second baffle is disposed on the outer wall of the gas accommodating chamber at a position between the two first baffles and extends in the circumferential direction of the gas accommodating chamber; and   the diameter of the second baffle is larger than that of the first baffle.   
     
     
         15 . The micro bubble generation device according to  claim 13 , wherein:
 the device further comprises a fourth fixed base and a first support, the bottom of the first support is fixed to the fourth fixed base, and the first driving motor is disposed on the first support;   a rotating shaft of the first driving motor is disposed in the horizontal direction and is connected to one end of the second hollow shaft through an aligning coupling, and the other end of the second hollow shaft is rotatably disposed on the first support through a bearing structure; and   an interior of the second hollow shaft is being in communication with the gas transmission pipe through a bearing seat and a sealing pipe.   
     
     
         16 . The micro bubble generation device according to  claim 6 , wherein:
 the device comprises a mounting plate capable of vibrating in the horizontal direction, the microporous material layer encloses at the top of the mounting plate to form the gas accommodating chamber, and the gas accommodating chamber is provided with a gas inlet connected with the gas transmission pipeline; and   a second driving motor is disposed below the mounting plate and is fixed to a center position of the bottom of the mounting plate, and a motor shaft of the second driving motor is perpendicular to a surface of the mounting plate that is horizontally disposed.   
     
     
         17 . The micro bubble generation device according to  claim 16 , wherein the second driving motor is a vibration motor. 
     
     
         18 . The micro bubble generation device according to  claim 16 , wherein:
 the device further comprises a fifth fixed base and a second support, and the bottom of the second support is fixed on the fifth fixed base; and   the mounting plate is a flat plate-shaped structure disposed in the horizontal direction, a middle position of each edge of the mounting plate is respectively connected with the second support through a spring, and the spring is in a horizontal state below the liquid surface.   
     
     
         19 . The micro bubble generation device according to  claim 17 , wherein the mounting plate is of square or circular shape.